Increasing tension on 40-189

Hi, how much can I adjust the tension so the door closes fast I dont mind the slamming. I tried turning another hole but it felt a little tight already.

Dave from SWISCO responded:

January 13, 2016

Hmm... I know there is a pretty respectable amount of adjustment in the 40-189. I have used the 40-189 in the past and was happy with the results. You said you turned it into another hole to adjust it. Maybe there is only just so much you can adjust. Due to safety concerns, the 40-189 isn't meant to close doors so fast that they would slam.

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